Pole-puncturing machine



Jan. 2, 1923.

M. R. RAWSON. POLE PuNcTuRm MA 4 SHEETS'SHEET l CHINE Fl LED MAR. I 9. l 921 z m w {I wH l m I 4 9 m 7 Jan. 2, 1923.

2 T E E H S S T E E H s 4 F H2 .m N 1 W G9 W 1| Am R wm OM wo M E L l LF 0 P 4 SHEETS-SHEET 3 Jan. 2, 1923.

M. R. 'RAWSON. POLE PUNOTURING MACHINE.

' FILED MAR 19 I921 Jan. 2, 1923. 1,440,893 I POLE u uf'us h tcums.

- FILED MAR 19. 1921, 4 SHEETS-SHEET 4 nameplate Patented Jan. 2, i923.

res

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MYnoN n. EAvrsoN, onsronnNE, wAsrirNsToN, ASSIGNOR To wEsTEnN CEDAR POLE PnEsEnvEns, or SPOKANE, WASHINGTON, A CORPORATION.

POLE-PUNCTURING MACHINE.

Application filed. March 19, 1921. Serial No. 453,644.

To all whom it may concern:

' Be it known that I, MYRoN R. RAwsoN, a citizen of the United States, residing at Spokane, in Spokane County, and the State of Washington, have invented certain new and useful Improvements in Pole-Puncturing'Machines, of which the following is a specification.

My present invention relates to improvements in pole puncturing machines designed for the purpose of piercing or making a hole in the periphery of a log or pole for subsequent treatment in a bath or by spraying, in order that the oil or other preservative applied may penetrate to the required depth from the surface of the log or pole. The primary object of the invention the provision of improved mechanisms and means for facilitating the operation of puncturing in order to reduce the time and labor required, and to insure proper treatment of the log or pole in the puncturing machine. With these and other objects in view the invention contemplates the utilization of a stationary conveyer upon, which the log or pole is received from a railway car and conveyed to proper position for action by the puncturing device. Means are employed for elevating the pole to position to be operated on by the puncturing device, and means are also employed for presenting the entire area of the log to be punctured. After having been properly treatedthe pole is restored to the conveyor, moved to final position, and then' maybe transferred to a waiting railway car upon which it is'loaded. In this manner the pole may be brought to the puncturing machine on a loaded car, transferred and conveyed through the puncturing plant, and reloaded upon a waiting car upon he same track. The invention consists in certain novel combinations and arrangements of parts for carrying out the above indicated objects as will be hereinafter more fully described and claimed.

in the accompanyingdrawings one complete example of the physical embodiment of the invention is illustrated'in which the parts are combined and arranged according to the best mode so far devised for the practical application of the principles of the invention. and this embodiment has proven highly satisfactory. in actual operation Figure 1 is afront view of a portionor a machine embodying the invention, shown partly in section.

I igure 2 is a view in side elevation of the machine showing the reciprocable puncturing head and supporting roll therebeneath.

Figure 3 is a plan view of the actuating parts of the machine, with the conveyor rolls shown in dotted lines, and the polesupporting rolls omitted.

Figure 4 is a sectional view of the machine at line 33 of Figure 3, illustrating a pair of conveyer rolls, and the lever mechanism for controlling the mechanism for rotating these conveyer rolls.

Figure 5 is a detail view of the eccentric friction clutches of the control mechanism actuated from the lever of Figure 4, for the conveyer rollers.

Figure 6 is a perspective view of the rolls "for intermittentlyturning the pole, showing the operating means therefor, and the means for elevating and lowering these rolls and their supporting frame.

Figure 7 is a detail view in elevation of a pair of idler. supporting rollers for the pole, showing also the elevator or vertically movable frame which is moved synchronously with the elevator or frame of the turning rollers'of Figure 6.

Figure 8 is a transverse sectional view of one of the turning rollers, which are supported to oscillate on their longitudinal axes to adapt them to the pole which they are to support and revolve or turn.

Figure 9 is a longitudinal sectional view of one of the turning rollers.

Figure 10 is a perspective view of the vertically reciprocable punch or puncturing device showing also the cam actuating mechanism therefor, and means for retaining the device in inoperative position.

Figure 11 is a detail view of one of the puncturing bars of the head, showing pointed pins at the lower end.

In the puncturing plant as now actually in use I utilize alongitudinally extending supporting frame comprising the three sills l, l, 1, supported above the ground on the posts or uprights 2 from the timbers 3 to provide a support for the conveyor rolls arranged in pairs as a and 5. The rolls are alin'ed on shafts 6 and the shafts are journaled at 7 at the top of the frame and at the ends of each. shaft a driven sprocket wheel Send a; driving sprocket wheel 9 are fixed to revolve therewith. The respective sprocket wheels are connected by sprocket chains- 10.. in order that the, several pairs of conveyer rollers'that are located at proper intervals throughout the length of the frame, may be driven synchronously, to coir vey the pole to the right or to the left in Figure 3.

The main driving shaft 11 in Figure 3 is drivenfrom the pulley 12 through belt 13 and pulley 14:01'1 the shaft, end from this shaft connections are made for positively revolving the conveyor rolls whichare arranged in five or more pairs distributeiil throughout the length of the frame of the conveyer.- =There are three sets'of transmissiongea-rs indicated in Figure 3 as 15, 16 and 17.the gear set 16' also being shown in F'guresi and 5, by means of which po-wer is transmittedfromthe driving shaft to the several sprocket wheels and chains for revolv ng the conveyer rollers, and power is transmitted through the opposed beveled gears 18 and 19 by ELIL'GGCGHlJllC friction or cone clutch member 20 on the clutch shaft 21. The clutch shaft is provided with a sprocket wheel 22 connected by sprocket chain 28 to a complementary sprocketwheel 24: on countershaft 25, and the countershaft 25 has a driving sprocket wheel 26 connected. by chain 27 to one of the driven sprockets S onthe roller shafts 6. The main driving shaft revolves continuously, inone direction but power may be received therefrom through clutch shaftsfll for a forward or reverse drive of the several sprocket. chains ofthe-conveyer; in order to move the logs or polesto the rightior left in Figure 3. In Figure 4 a single lever--28nlocatedin such position as to -beireadily accessible by the operatorgis shownfor controllin-gthe movement of the several clutch shafts, andthe clutch lever is connected to a series of hell crank levers-29 bydinks 30, thehell "cranks being pivoted on a single i'ipi'igrht post 31, and each. having a connecting rod 32 extending longitudinally of the .main frame and parallel with the main driving shaft.

RIP-Zach of these connecting rods is. pivoted to a clutch arin 39). :lSlH'Flglll'Bb "l and Zigand it Will readily .be apparent that byshifting thenelutch lever to the right or left in ilrligure 4 the eccentric. clutch members 20 of the several gearzsets ortransmission gears 1.5 16. '17 andothersnot shown will engage either gear 18.01 '19 ofthe transmis sion set to revolve the clutch;shafts2l, and @through the above described connections the conveyerrolls are rotated to move alog sup- :ported thereonyeitheritothe right orlleft in Figure 3'. Thus a car load of polesmay be drawn-up alongside the. conveyor frame at the "left iin 'Figure =2, and z-bhe polesfrom the be attachedgto the elevator having,

car unloaded one at a time, onto the convever rollers at the left of thecenter of Figure 3. Sometimes the buttiend of the pole will be at the front, and, as usually loaded. on the. cars the smaller or tip. end of While .inthis posi.tion,.,and supported on the conveyor rollers, the pole is bodily elevated, and lifted from the convever rollers --by.1neans. Ofgilt; least. two pairs. f-rollers in- .dicatedbywthenumbers 35 and 36 respectively in'Fi-g'ures 7 and o, and the pole is adapted to be turned ,While supported in these two devices.

The rollers 35, as shown best in Figure 7.. areidle ,rollersljournaled in aframe or elevator 37 with the rollers in ernal alinement with the longitudinal axis ofthe pole supported thereon, and a metallicguard 38 may V-shape central construction. This guard is fashioned ofa metal strap, shoivnas of til-shape and-boltedto theQlev-ator with itsi-entral ill-shape portion in positionto obstruct the .pgle against lateral movement and prevent it .from umping or twisti I out of the roll ers. The elevator ,is in the form of a rectangular platform -.fro1nthe four corners of which depend guide rods 39-which pass througlr guide sleeves 40 fixed to the guiae plate 41. hhe guide plate ilis fixed and suitably supported and the guide rods are vertically reciprocable in the sleeves all through the action. ,of a central screw bar A2attachedat thennderside of the elevator :platibrm and centralthereof. A bevel gear 4:3,-Wltl1--t.llOIl lilfidelllig IlutiJOlillOi'l Ell is jonrnaled .in the guide :plate -11 and the screw bar is threaded through this nontraveling nut. 'The ,noii-traveling nut and .lievelg 11.1.8110 revolved through. the driving gear on=the horizontal. tending shaft 46 shown in Figures and 7. and thi shaft as seen in Figure 3 may he revolved in two directions from the sz ea.r set 47.483011 the .main drive shaft and the friction eluteli.,meniber l9 on. the shaft lii. This clutch.mechanism is similar to that .illustratedin Figure 5 .andthe several (stemsets for elevating the supporting rollers are controlled by a lever similar to lever QS that is connected by. rods or links a to the bellcrank .levers.5l,.and the bell crank leve s ..are. connected to the clutches, by con .necting rods [52 extending parallel with the transversely ex shafts 46. The utilization of two elevators 1s illustrated in Figure 3, one'at each side of thelongitudinal center of the frame, but it will be understood that more maybe used if desired, although not illustrated'in the drawings.

In connection with the idle rollers, a pair of turning rollers 36 are also elevated or lowered to support and to turnor revolve the pole. One pairor set of these rollers as used, and they are of special construcvtion to. adapt them to support and turn the 'polefduring the process of puncturing it.

The poles are usually of "a tapering form, the butt end which is to be punctured, bemg larger in diameter than the remainder of the pole, and to accommodate the pole in its tapering shape or-to adapt the turning rollers to other irregularities in the peripheral shape of the pole, the turning roll- .ers are adapted to oscillate on their longitudinal axes. For this purpose the turning rollers 36 are made insectio-ns 53 and 54 in Figures Sand 9 ,ez1-cli section having spikes 0r spurs 55interspersed over its an tire exterior to engage the periphery of the pole and assist in turning the pole on' its axis. The two sections are provided with long tudinally extending flanges 56, bolted together by transversely extending bolts, and

the transverse web 15'? of each section is fashioned with a hemispherical cup as 58 and 59-which together form a spherical socket for the encased ball 60 which is keyed to the longitudinally extending shaft 61 of each turning-roller. The ball of course revolves with the shaft to whichit is fixed and the roller is revolved .with. the ball through the instrumentality of a pin 62 GX tending radially from the ball into a slot 63 7 formed therefor in the transverse spoke por tion 64 of the two sections of the roller. From this construction it Wll'l be apparent that the turning roller may wobble or osc1llate longitudinally on the ball and socketbearing the center thereof while the roller is revolved from its shaft 61.

The duplex rollers 36 are arranged in parallelism and their shafts are journaled at in hearings on the elevator 66. On

one end of each shaft 61. a worn) wheel. 67

is fixed, and the two worm wheels are turned through the worms 68 on the worm shaft 69 volved from a flexible, telescoping shaft 71 provided with ,a universal yomt'C Q, and a second universal joint 73 connects the flexible shaft with a lcountershaft 74 journaled at 75 on a suitable ipport. The two time ingv rollers are intermittently revolved in the same direction through these connertions as will be described.

stantially similar to these elevators for the idler rollers. Thus as seen in Figure 6 the platform or elevator 66, which is of rectangular shape is provided with four guide rods 76, one at each corner, and these guide rods pass throughsleeves 77 at the corners of the fixed guide plate 78. A center screw bar 79 depends from the elevator 66 and. passes through a bevel gear 80 forming a. non-traveling nut 81, and the gear 80 is revolved by a complementary gear 82 on the gear shaft 83 that extends transversely toward the main shaft of the machine. The gear shaft 83 is provided with a clutch member 84 co-acting with either of the gears 85 or 86 forming a gear set on the main shaft, as shown in Flgure 3 at the center thereof. The clutch member 84 is controlled from one of the bell crank levers 51 and connecting rod 52 in manner similar to the control of the clutches forming part of the elevating mechanism for the idle rollers. and by manipulating the links 50 from the elevating lever (not shown) the elevators for the idle rollers and the elevator for the turning rollers are all synchronously either raised or lowered, as will be understood.

Theturning rollers are intermittently rotated in connection with avertically reciproeating puncturing mechanism, the rollers being revolved to turn the pole supported thereon after each working stroke of the rebelt 88 passing over the drive pulley 89 on the main shaft, driven pulley 96 on the drive shaft 91 of the puncturing mechanism,-

and over guide pulleys fih! on the upright frame for carrying the belt thron gular DOSliJlOlL he-5hr we (11m is the driving 91 is connected withthe can) shaft I small pinion 96 and a larp "gear 97 the former on the driving shaft and the latter on the cam shaft, and the cam shaft is provided with a. pair of cam disks 9& 99 near its respective ends that engage complementary rollers 100 on the ends of a horizontal beam 101. The beam is vertically reciproand is lot) is illustrated in Figure 11. bars or plungers has a head 10st PTOJGC'tlIlQ;

with spikes or spurs 106 project cable in the slotted guide plates 1023. sup-v V ported vertically U1 the upright Frame, and

as the cam shaft is revolved, the cam disks thereon, through rontact with the cam rollersalternately lift the beam and permit it to drop, the beam being guided in its movement in the slotted gulde plates therefor.

The beam forms a supporting head for 'a'series of vertically arranged closely spaced and alined plunger bars, 108, oneoii which Each oi the therefrom to rest upon the upper surface of the beam and be suspendedtherefrom in Vertical position, and at its lower end the plunger provided with ara p late 105 H p g downwardly therefrom. The suspended plungers are guided and held in proper position between a pair oi guide plates 107and 108,

preferably in the form of I metallic channel beams positioned horizontally in the frame, parallelvwith the driving; shaft and ca m shaft, and below these shafts. as seen in Figure 10. It will be evident that as the head beam 101 is elevated it will lift all the suspended plunger-s, and that when the cam disks permit the head beam to drop, the plungers will also be free to drop. The plungers are of suliicient length to strike the pole supported on the turning rollers I beneath the plunger-s, but the head beam has a drop greater than the expected drop oi any 01'? the plungers. Thus the plungers of the series may drop different distances before their spikes or spurs encounter the supported pole to adapt the'puncturing device to irregularities in the periphery of the pole. Itithe taper of the pole is great,

the plungers at the end of the head beam pole throunhout the lenn'th ot the seriesot plungers on the wor n troke oi theplunp} 'ers while on the return or u rward stroke of the plungers .he heads beam the heads oi? the plungers SILCLPSSlVQlY and then lifts the plungers with a uniform movement to normal upper position. It it is nred for any reason to retain the beam audits plungers in. uplifted position, while the camplates are revolving, li may swing: a pair of re-' tainiug hooks 109 under the beam for this purpose. The books are fixed to a rock shaft 110 ournaled in brackets or hangers .111 suspended from the upper part of the upright frame, and a Y-shape yoke 112 is working stroke oi connected to the lower free ends of the hooks to r swinging the hook into engagement with the beam, or out of engagement therefrom. The yoke may be manipulated by hand directly, or through suitable connections, and the rock shaft is counterbalanced by a weight lili'lon the arm 11 i fixed .tothe released theweight automaticallyswingsthe hooks to position to engage under the beam.

The pole i'ssupported at rest in the turning rollers while the plungers are operating on their working stroke, and after each the plungers the pole is turned action of the spiked turning"- rollers, which are intermittently revolved hrough the flexible shaft connection shown in Figure 6. This shaft connection isintermittently actuated by the continuously mov inn; sprocketc hain 115 in Figure 1 which is driven from the sprocket wheel 116 on the cain shaft of the puncturing mechanism, the chain passmg over. gu de-wheels 117 on the upright frame, and extending around a driven sprocket wheel 118 (Figures 1 and 6) on the rotor shaft 119 which isjournalejd on bearings 120 on the uprightfrarne. 'lhis shait 119carries a slotted arm or yoke 121 radiating therefrom, whichis designed to engage successively the teeth of a star wheel 122 rotatable withits shaft 123. *The star wheel shaft is journaled in bearings 12% at right angles to the shaft 74E andthe star wheel shafthas a 'bevel gear 125}meshing with the pinion 126 on the shaft 74. The sprocket chain115 and its wheels are timed to revolve the-rotor or yoke'121 with each reciprocable movement of the plungers, and after each working stroke of the plungers the star wheel is'turned one tooth, thusactuating the connections to the turning rollers whichresultsin revolving these rollers .suiiiciently to turn theipole supported thereon to present another portion of the pole to be penetrated by the next working stroke of the plungers. i d V .A'lter the pole has been properly pierced or punctured, theplungers of the puncturing device may be retained in uplifted position, the supporting frames for the idler rollers and turning rollers are lowered, permitting the pole to rest upon the conveyer rollers i. The pole may now be conveyed toward the delivery or right end of the machine in Figure 1, making room for another pole to be loaded upon the rollers 4;, and then the second pole is punctured in same manner as the first. By arrangement of mechanisms the poles are manipulated or handled With facility and dispatch, and are brought successively to the proper position for puncturing as 'described.

Having thus fully described my invention, What I claim as new and desire to secure by Letters Patent isl. The combination in a pole puncturing machine with a vertically reciprocable puncturing mechanism, of a longitudinal con veyer, a plurality of elevators and actuating means therefor for lifting a pole from the conveyer, and means on one of said elevators for turning a pole after each Working stroke of said reciprocable puncturing mechanism.

2. The combination in a pole puncturing machine With a longitudinal conveyer, of a plurality of elevators and actuating means therefor for lifting a pole from the conveyer, and longitudinally oscillatable means on one of said elevators for turning said pole.

3. The combination with a plurality of elevators and actuating means therefor, pole supporting elements on said elevators, one of said elements comprising a pair of driven rollers adapted to receive a pole between them and for turning said pole, and supports for said rollers whereby the rollers o"- cillate on their longitudinal axes to adjusted position for supporting the pole.

i. In a pole puncturing machine, the combination with a pair of supporting and turning rollers, of a vertically reciprocable headbeam, a series of alined plungers independnetly supported on said beam above said rollers, means for elevating said beam, and said elevating means adapted to permit dropping of said beam and plungers for the purpose described.

5. In a pole puncturing machine, a reciprocable head-beam, guiding means therefor, and rollers on the ends of said beam, acam shaft and operating means therefor, cam disks on the shaft engaging said rollers to elevate said beam, plungers on the beam, and said beam and plungers adapted to drop when the cams are disengaged from said rollers.

In testimony whereof I affix my signature.

MYRON R. RAWS ON. 

